Detecting Live Copy Variation Nodes in AEM 6.5

I am trying to escape a method when the node is a Live Copy Variation. This is the code I wrote:

Resource res = resourceResolver.getResource(path);
if (res == null) {
    return;
}
ModifiableValueMap properties = res.adaptTo(ModifiableValueMap.class);
if (properties == null) {
    return;
}
// Escape the method for Live Copy Variations Nodes
if (properties.containsKey("jcr:mixinTypes")) {
    String[] array = (String[]) properties.get("jcr:mixinTypes");
    boolean isLiveCopy = Arrays.asList(array).contains("cq:LiveRelationship");
    if (isLiveCopy) {
       return;
    }
}

 Is there a better way to find out if the resource is a live copy variation?